Referance books for ipcc group 1

accounts- pc tulsian i guess

tax- girish ahuja sirs

cfm-ashish kalra sirs

law- munish bhandari sirs

this is my opinion

IPCC 

GRP I

Accounts  - Padhuka 

Taxation   - TN Manoharan / Girish Ahuja

Cost/FM    -  Padhuka

Law           -  Munish bhandari

NOTE : Following Tulsian for accounts will waste ur valuable time in the last moment. As such u dont have much time with u now. So i suggest you to do go for padhuka as that can be completed much earlier than tulsian.. no doubt tulsian is an excellent book, but only when read 9months before the exam.

              One drawback with the padhuka books in Accounts and Costing & FM is that they dont make students understand the concept well and proceed for problems rather they directly go for the problems. I suggest you to go through the padhuka book first and in case you are not satisfied with the concept then just see that particular concept alone in our Institute's study material.

GOOD LUCK

Regarding crash courses you will always have rapid revision classes hosted by the local ICAI chapter, but what i personally feel is that would do only 20% value addition to your confidence.. There are also many private institutions offering these rapid revision classes. I can suggest you some if u r in chenai.

accounts -tulsain